terminal-chess: src/network.c@e5fbb8f9edbe (annotated)

src/network.c@e5fbb8f9edbe (annotated)

src/network.c

Wed, 05 Feb 2014 14:07:43 +0100

author: Mike Becker <universe@uap-core.de>
date: Wed, 05 Feb 2014 14:07:43 +0100
changeset 1: e5fbb8f9edbe
child 2: 0a08f79c320d
permissions: -rw-r--r--

added (single) client / server architecture

 /*
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
  *
  * Copyright 2014 Mike Becker. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *   1. Redistributions of source code must retain the above copyright
  *      notice, this list of conditions and the following disclaimer.
  *
  *   2. Redistributions in binary form must reproduce the above copyright
  *      notice, this list of conditions and the following disclaimer in the
  *      documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
  *
  */
 #include <stdlib.h>
 #include <string.h>
 #include "network.h"
 int server_bind(Server *server) {
     server->fd = socket(server->info->ai_family,
         server->info->ai_socktype, server->info->ai_protocol);
     if (server->fd > -1) {
         int true = 1;
         setsockopt(server->fd, SOL_SOCKET, SO_REUSEADDR, &true, sizeof(int));
         if (bind(server->fd,
                 server->info->ai_addr, server->info->ai_addrlen)) {
             server->fd = -1;
             return 1;
         } else {
             return 0;
         }
     } else {
         return 1;
     }
 }
 int net_create(Server *server, char* port) {
     return net_find(server, "localhost", port) || server_bind(server);
 }
 int getaddrinfo_intrnl(char *host, char *port, struct addrinfo **info) {
     struct addrinfo hints;
     memset(&hints, 0, sizeof(hints));
     hints.ai_socktype = SOCK_STREAM;
     hints.ai_protocol = IPPROTO_TCP;
     return getaddrinfo(host, port, &hints, info);
 }
 int net_find(Server *server, char *host, char* port) {
     memset(server, 0, sizeof(Server));
     server->fd = -1;
     return getaddrinfo_intrnl(host, port, &(server->info));
 }
 int net_listen(Server *server) {
     listen(server->fd, 1);
     Client* client = calloc(1, sizeof(Client));
     client->fd = -1;
     server->client = client;
     client->fd = accept(server->fd,
         &(client->address), &(client->address_len));
     return client->fd == -1;
 }
 int net_connect(Server *server) {
     struct addrinfo *info;
     if (getaddrinfo_intrnl("localhost", NULL, &info)) {
         return 1;
     }
     Client* client = calloc(1, sizeof(Client));
     client->fd = socket(info->ai_family, info->ai_socktype, info->ai_protocol);
     server->client = client;
     freeaddrinfo(info);
     if (client->fd == -1) {
         return 1;
     }
     return connect(client->fd, server->info->ai_addr, server->info->ai_addrlen);
 }
 int net_destroy(Server *server) {
     if (server->info) {
         freeaddrinfo(server->info);
     }
     if (server->client) {
         shutdown(server->client->fd, SHUT_RDWR);
         free(server->client);
     }
     if (server->fd > -1) {
         return shutdown(server->fd, SHUT_RDWR);
     }
     return EXIT_SUCCESS;
 }

Mercurial > hg > terminal-chess / annotate

src/network.c@e5fbb8f9edbe (annotated)

src/network.c